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Whole-rock geochemistry and Sr-Nd isotopic composition of ... - CPRM

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Table 1<br />

Chemical <strong>composition</strong> <strong>of</strong> the Camamu Basin samples (oxides in % <strong>of</strong> weight, trace elements in ppm, <strong>and</strong> CIA in %).<br />

Sample Major element Trace element CIA<br />

SiO2 Al2O3 TiO2 Fe2O3 (T) MnO MgO CaO Na2O K2O P2O5 P.F. Total Y Pb Ni Co Cu Ga <strong>Sr</strong> Zr Zn Nb Rb As Cr Ba<br />

Camamu 1<br />

VA 01 56.1 19.6 1.16 11.31 0.04 1.25 0 0 2.4 0.02 7.3 99.08 81 43 60 107 55 74 40 477 108 132 428 19 266 711 89.30<br />

VA 02 54.8 21.4 1.04 9.73 0.02 1.24 0.08 0 1.8 0.06 8.3 98.49 69 65 60 72 50 56 74 528 98 115 355 25 189 1082 92.01<br />

VA 03 62 13.8 1.35 12.08 0.04 1.25 0 0.44 2.6 0.02 5.3 98.83 96 35 60 118 51 79 43 578 114 149 460 21 355 810 82.22<br />

VA 04 57.7 20.4 1.06 9.75 0.04 1.33 0 0 2.3 0.07 7.8 100.4 88 57 60 78 54 58 86 486 142 119 400 24 226 1075 89.81<br />

VA 05 55.5 21.7 0.92 8.74 0.03 1.48 0.09 0 2 0.1 8.3 98.87 85 75 15 57 53 53 105 467 140 105 354 28 167 1134 91.13<br />

VA 06 57.5 20.8 1 8.73 0.04 1.32 0 0 2.2 0.06 8 99.7 76 68 16 61 50 56 75 524 138 106 373 25 166 927 90.33<br />

VA 07 58.3 20.3 1.01 8.67 0.03 1.15 0 0 2 0.06 7.6 99.1 70 76 15 59 49 52 72 575 139 108 350 27 182 912 91.03<br />

VA 08 55.7 21.8 0.93 8.65 0.03 1.59 0.09 0 2.2 0.11 8.2 99.28 87 53 16 57 48 53 112 453 101 103 372 22 151 1333 90.54<br />

VA 09 55.4 20.3 1.16 10.9 0.03 1.61 0.08 0 2.5 0.02 7.4 99.32 87 44 60 94 53 72 49 509 113 126 447 19 243 725 88.86<br />

VA 10 55.4 20.8 1.06 9.76 0.03 1.61 0.08 0 2.3 0.08 7.8 98.99 91 66 19 74 49 59 91 489 111 120 413 25 213 1030 89.59<br />

VA 11 57.5 19.9 1.09 9.51 0.04 1.26 0 0 2.3 0.03 7.3 99 73 43 17 72 47 60 43 523 101 118 398 18 195 716 89.70<br />

VA 12 57.9 20.9 0.93 8.01 0.04 1.28 0 0 2.2 0.1 7.8 99.06 69 46 17 49 47 49 93 468 99 97 352 20 176 1066 90.62<br />

VA 13 57 22 0.87 7.59 0.04 1.34 0 0 2.2 0.11 8.2 99.29 69 56 17 46 47 46 106 446 102 92 345 22 158 1277 91.03<br />

VA 14 56.6 21.5 0.99 8.74 0.05 1.66 0 0 2.6 0.07 7.8 100.1 81 47 20 62 56 53 78 469 129 104 405 20 175 952 89.30<br />

VA 15 58.5 19.7 0.94 8.28 0.04 1.4 0 0 2.3 0.02 7.2 98.31 58 39 18 56 46 53 37 367 93 98 374 15 174 649 89.45<br />

VA 16<br />

Camamu 2<br />

57 21.6 0.91 8.12 0.04 1.38 0 0.49 2.2 0.11 8 99.89 77 59 23 53 49 50 109 464 109 92 357 23 162 1257 88.80<br />

VA 17 62.2 18 0.9 7.02 0.1 2.37 0 0 5.2 0.13 5.5 101.3 177 31 77 51 111 42 258 251 219 82 510 17 204 3037 77.64<br />

VA 18 60.5 16 1.02 8.07 0.19 2.68 0 0 5.1 0.03 5.1 98.58 186 36 75 70 120 51 158 258 264 95 590 17 262 2707 76.00<br />

VA 19 57.6 17.9 0.95 7.63 0.07 2.55 0 0 4.5 0.06 7 98.18 208 35 71 61 117 46 163 246 228 92 557 15 240 2300 79.96<br />

VA 20 57.2 19.1 0.95 8.13 0.15 2.82 0 0 4.5 0.08 6.8 99.63 235 38 73 78 129 54 177 239 241 100 563 17 245 2563 81.07<br />

VA 21 56.8 18.6 1.02 8.77 0.09 2.56 0 0 4.1 0.04 6.7 98.68 251 35 71 82 133 56 93 245 229 108 568 16 327 1854 81.93<br />

VA 22 57.6 18.5 1.06 9.14 0.06 2.6 0 0.44 4.2 0.04 6.9 100.6 255 34 67 89 136 59 86 251 233 116 577 17 279 1788 80.11<br />

VA 23 60.5 17.6 1.02 8.52 0.08 2.48 0 0.44 4.1 0.06 6.7 101.4 266 35 60 81 127 54 108 265 206 111 575 17 267 1816 79.60<br />

VA 24 56.9 20.2 0.86 7.59 0.12 2.51 0 0 4 0.11 7.2 99.41 287 37 83 68 137 48 151 234 221 104 557 16 206 2703 83.45<br />

VA 25 55.4 19.5 0.94 8.43 0.47 2.59 0 0.22 3.9 0.14 7.4 98.93 286 36 84 245 160 55 153 238 217 111 556 17 213 3218 82.71<br />

VA 26 55.7 19.2 0.94 9.16 0.47 2.65 0 0.36 3.8 0.09 7.3 99.8 311 46 92 160 177 58 109 238 244 119 572 18 236 2624 82.07<br />

VA 27 57 19.7 0.96 7.75 0.14 2.44 0 0 3.7 0.13 7.3 99.2 280 35 77 91 140 49 132 255 227 107 512 14 239 3556 84.25<br />

VA 28 56.6 20 0.95 7.69 0.13 2.27 0 0.47 3.5 0.19 7.5 99.35 253 34 71 74 123 50 136 258 201 103 482 14 218 4519 83.30<br />

VA 29 56 21.6 0.91 7.78 0.14 2.11 0 0 3.5 0.08 7.7 99.75 160 41 52 139 116 55 107 246 143 94 466 15 240 1904 86.01<br />

VA 30 56.2 20.8 1.02 8.23 0.07 2.16 0 0 3.4 0.07 7.2 99.14 159 38 51 98 123 54 106 257 150 98 461 17 247 1615 85.78<br />

VA 31<br />

Camamu 3<br />

56.8 21 0.93 7.47 0.07 2.08 0 0 3.4 0.13 7.5 99.29 161 37 51 71 120 50 116 262 152 91 455 15 229 2839 86.12<br />

VA 32 54.1 20.9 0.89 8.77 0.03 2.33 0 0 4.4 0.11 7.8 99.15 134 40 31 62 99 61 97 246 124 95 573 18 238 3023 82.68<br />

VA 33 55.7 20.6 0.9 8.47 0.15 2.4 0 0 4.3 0.15 6.8 99.4 150 45 50 71 120 60 108 243 137 93 561 19 217 3870 82.83<br />

VA 34 55.2 20.9 0.92 8.62 0.04 2.57 0 0 4.4 0.1 6.9 99.68 128 36 41 70 115 61 86 238 147 91 576 16 221 2767 82.65<br />

VA 35 56.4 19.9 0.9 8.35 0.13 2.62 0 0.48 4.4 0.05 7 100.2 127 36 54 79 137 58 67 235 226 91 585 16 233 2167 80.30<br />

VA 36 56.5 18.8 0.96 9.32 0.33 2.89 0.08 0 4.5 0.05 6.4 99.76 142 41 62 136 177 62 73 246 268 98 614 17 247 2438 80.50<br />

VA 37 57.1 20.2 0.85 7.9 0.08 2.79 0 0 4.6 0.12 6.8 100.3 167 40 73 55 148 54 130 231 336 90 582 16 223 3349 81.51<br />

VA 38<br />

Camamu 4<br />

57.1 18.7 0.94 9.36 0.1 2.83 0 0 4.9 0.07 6 99.92 166 43 60 91 117 62 93 240 346 96 653 18 251 2885 79.32<br />

VA 39 55.1 21.9 1.01 8.38 0.02 1.91 0 0 3.4 0.11 7.6 99.42 106 87 47 58 67 54 241 270 129 87 438 27 260 1979 86.41<br />

VA 40 54.5 22 0.97 8.31 0.03 2.07 0 0 3.7 0.06 7.7 99.3 110 35 53 63 77 57 157 254 145 90 467 16 267 1510 85.68<br />

VA 41 56.9 19.7 0.91 7.7 0.06 2.52 0 0 5 0.08 6.1 99.35 193 27 66 57 100 49 237 240 207 92 586 12 240 2963 79.80<br />

VA 42 57.7 19.3 0.9 7.73 0.08 2.6 0 0 5.5 0.06 5.7 99.6 193 31 69 60 93 47 223 239 216 91 566 13 218 2558 77.94<br />

VA 43 57.9 17.9 0.91 7.77 0.08 2.63 0 0.44 6.3 0.02 4.9 98.85 168 30 71 59 80 46 160 224 221 86 573 13 218 2505 72.62<br />

VA 44 59.3 18.3 0.88 7.31 0.05 2.6 0 0 6.6 0.19 5 100.1 195 27 71 49 80 44 368 239 223 89 544 12 202 5074 73.44<br />

VA 45 58.4 18.2 0.94 7.88 0.1 2.73 0 0 6.3 0.02 5.1 99.6 151 33 73 62 85 50 160 232 229 86 589 13 235 2500 74.26<br />

VA 46 57.7 18 0.91 7.47 0.06 2.62 0 0.43 6.4 0.06 4.8 98.44 144 26 66 51 82 47 240 238 204 84 556 11 211 2653 72.49<br />

VA 47 57.8 18.1 0.87 7.76 0.25 2.54 0 0.46 6.7 0.09 4.9 99.37 143 31 72 55 88 47 247 218 208 82 591 13 204 3277 71.63<br />

VA 48 56.6 19.3 0.93 7.32 0.02 2.41 0 0.4 5.4 0.12 6 98.47 105 31 54 43 72 47 299 249 179 78 580 13 216 3453 77.01<br />

VA 49 57 20.3 1.02 7.33 0.02 2.32 0 0.46 4.1 0.14 6.5 99.19 123 36 59 49 81 50 300 283 176 86 524 13 245 3619 81.70<br />

VA 50 56.3 19.8 1.02 8.12 0.03 2.38 0 0 4.4 0.23 6.5 98.68 177 34 61 55 92 53 411 275 195 94 564 15 244 5399 81.96<br />

(continued on next page)<br />

D.R.A. Silva et al. / Journal <strong>of</strong> South American Earth Sciences 39 (2012) 59e71 63

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